网址：www.zaoxingji.com.cn 2020-05-13 作者：admin 阅读：
The modeling line of horizontal parting detachable box is easy to misplace
Because of the design of the horizontal parting line, the casting is
easy to produce wrong box. For the new equipment, without considering
the mold factor, the causes of wrong box are as follows:
① The pin and sleeve of positioning sand box or formwork are worn fast,
which affects the positioning accuracy. It should be checked regularly
and replaced in time.
② The pushing speed is too fast, resulting in the up and down type
displacement. After the upper and lower closure, the inner closure
station of the molding machine is pushed to the auxiliary line, usually
to ensure the efficiency and high speed of the production line.
Especially when the molding line runs for a long time and the wheels of
the transport trolley on the auxiliary line are worn, which causes the
upper plane of the trolley to be lower than the closing position, the
phenomenon of wrong box will be more serious.
③ The positioning of the auxiliary line transport car is too simple, and
some types of modeling line transport cars even have no design
positioning. The positioning accuracy is not high, so it is difficult to
ensure the coincidence between the center of the casing and the center
of the sand mold, which will directly cause the casing to touch the
upper mold and form the upper mold displacement, resulting in the wrong
④ If the accumulated sand on the running trolley is not cleaned in time,
the sand tire will be blocked too much during the running process,
resulting in wrong type.
⑤ If there is sand on the side of the casing, it will cause the center
of the casing and the formwork not to coincide, resulting in wrong
⑥ In the process of molding sand transportation, many companies open
their transportation, which will lead to excessive evaporation of water
and decrease of molding sand performance, especially in summer. The
conveyor belt is sealed with a shield to reduce the evaporation of